I have a FrameLayout that recognize swipe gestures (up and down).
For example: if a swipe up are performed, I should animate the current view (that is MATCH_PARENT x MATCH_PARENT) to goes up at the same time a new view come from bottom.
I can achieve this with animations?
I solved this way:
private void swipeUp() {
current.currentPage++;
final View hidingView = currentView;
TranslateAnimation hide = new TranslateAnimation(0, 0, 0, -getHeight());
hide.setAnimationListener(new AnimationListenerAdapter() {
#Override
public void onAnimationEnd(Animation animation) {
hidingView.setVisibility(View.GONE);
}
});
hide.setDuration(1000);
hidingView.startAnimation(hide);
TranslateAnimation show = new TranslateAnimation(0, 0, getHeight(), 0);
show.setFillAfter(true);
show.setDuration(1000);
View nextView = getView();
addView(nextView, createLP());
nextView.startAnimation(show);
currentView = nextView;
}
If you want to actually switch views, you need to implement an AnimationListener that takes care of the animation. If you want more complex behavior like a "finger following" scroller between views, you will likely have to use something a bit more complex, but if you're just saying
if(I flicked upwards)
move view up
then AnimationListener is perfect for you. Just make sure you set the listener to the Animation in code.
Hope this helps!
Related
I want to use animate on videoView which is above the imageView and recyclerView. At first, videoView's visibility is Gone and when i click on the item on the recyclerView i want to make videoView Visible with the animation sliding down and also use animation to the imageView to slideUp and make it Gone. How can i do that. I have given the snapshot of before and after of the layout.
Before Animation:
After Animation:
This is what I have done for a similar situation. In your layout you need to put both views one above the other (on the exact places where they have to appear). Add the global layout listener to the videoView / imageView once in onCreate and then just change the visibility of the according view. This code could be reused with the imageView, but keep in mind that you cannot change the visibility of both views at the same time, because they will overlap. Maybe you need to wait for the first animation to go off and then show the next. It's up to you.
private static final int ANIMATION_DURATION = 350;
private void addVideoViewAnimation(final View videoView) {
videoView.setTag(videoView.getVisibility());
videoView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int newVisibility = videoView.getVisibility();
if ((int) videoView.getTag() != newVisibility) {
videoView.setTag(newVisibility);
TranslateAnimation animation;
if (newVisibility == View.VISIBLE) {
animation = new TranslateAnimation(0, 0, -videoView.getHeight(), 0);
animation.setInterpolator(new DecelerateInterpolator());
} else {
animation = new TranslateAnimation(0, 0, 0, -videoView.getHeight());
animation.setInterpolator(new AccelerateInterpolator());
}
animation.setDuration(ANIMATION_DURATION);
videoView.startAnimation(animation);
}
}
});
}
I need my listview to hide and show using alternative touches. Hence for hiding the listview on the left side of the screen am using animation
Animation animation = new TranslateAnimation(-100, 0,0, 0);
animation.setDuration(100);
animation.setFillAfter(true);
lv.startAnimation(animation);
lv.setVisibility(0);
and for displaying am using
lv.setVisibility(View.VISIBLE);
My problem is list view is not getting hide. It will go leftside and coming back again. I don't know how to hide listview to the left edge completely on touch. Please help in achieving this
// To animate view slide out from left to right
public void slideToRight(View view){
TranslateAnimation animate = new TranslateAnimation(0,view.getWidth(),0,0);
animate.setDuration(500);
animate.setFillAfter(true);
view.startAnimation(animate);
view.setVisibility(View.GONE);
}
// To animate view slide out from right to left
public void slideToLeft(View view){
TranslateAnimation animate = new TranslateAnimation(0,-view.getWidth(),0,0);
animate.setDuration(500);
animate.setFillAfter(true);
view.startAnimation(animate);
view.setVisibility(View.GONE);
}
// To animate view slide out from top to bottom
public void slideToBottom(View view){
TranslateAnimation animate = new TranslateAnimation(0,0,0,view.getHeight());
animate.setDuration(500);
animate.setFillAfter(true);
view.startAnimation(animate);
view.setVisibility(View.GONE);
}
// To animate view slide out from bottom to top
public void slideToTop(View view){
TranslateAnimation animate = new TranslateAnimation(0,0,0,-view.getHeight());
animate.setDuration(500);
animate.setFillAfter(true);
view.startAnimation(animate);
view.setVisibility(View.GONE);
}
Finally i find the answer and it is very simple modification in co-ordinate values. And the code is
Animation animation = new TranslateAnimation(0,-200,0, 0);
animation.setDuration(2000);
animation.setFillAfter(true);
listView1.startAnimation(animation);
listView1.setVisibility(0);
Here am setting negative value at second co-ordinate cause from o it is moving twowards negative side which means the view is moving twowards inner left side.
If you want to hide your View, use
View.INVISIBLE // constant value 4
or
View.GONE // constant value 8
You are currently using the value 0 which is the constant value of View.VISIBLE.
I suppose you want to hide the ListView after animating it?
But you are showing the ListView directly after starting the animation. Take a look at AnimationListener and hide the ListView
onAnimationEnd(...)
For example:
// assuming the listview is currently visible
Animation animation = new TranslateAnimation(-100, 0,0, 0);
animation.setDuration(100);
animation.setFillAfter(true);
animation.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
lv.setVisibility(View.GONE);
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
lv.startAnimation(animation);
for the general understanding of what you don't know, i found you another post that explains it very good!! The View and its animation work a bit different as it might be expected!
https://stackoverflow.com/a/5888969/2074990
I have 3 views on a screen in android, assume like set of buttons, map, list and another information view. these are all present vertically.
So, if i click on list, map should get updated & also buttons color should change. Some time if i click on button information should display.
In this scenario, is it good to use fragments? or Relative layout?. suggest
Thanks
I would go with a Activity that consists of a RelativeLayout, with 3 FrameLayouts inside the RelativeLayout. I would then add Fragments in code, to the FrameLayouts. 1 fragment to each. This way you can easily move the fragments in any way you desire. Sliding menus, top sliding, side sliding, over and under, so easy. So easy if you set it up like this.
When the far left is selected you can shove ther other 2 the right, when the center receives focus slide the left one to the left and right one right, and when the far right one gets focus, slide the other to to the left.
Or you can do top to bottom.
Or you can just have all 3 have equal space, at all times.
Or you can always shove the non-focused ones to the right, left, top, bottom, the possibilities are endless. You can shrink the unfocused 2 to 1/4 size and shove them to one side of the screen, one o top and one on bottom.
See where I'm going?
otherwise do a linearlayout, with 3 framelayouts, and set each framelayout to weight = 1 (may have to toggle a few other options to keep them perfectly even at all times), then add your fragments.
public void swapfragment(int fragId, Bundle args, boolean slide)
{
FragmentTransaction ft = getFragmentManager().beginTransaction();
switch (fragId)
{
case FRAGID_DEVICE:
currentFrag = new FragmentDevice();
currentFrag.setArguments(args);
((FragmentDevice) currentFrag).initialize();
break;
case FRAGID_NETWORK:
currentFrag = new FragmentNetwork();
currentFrag.setArguments(args);
((FragmentNetwork) currentFrag).initialize();
break;
}
ft.replace(R.id.flFragHost, currentFrag).commit();
if (slide)
slideFragment();
}
private void slideFragment()
{
final Point displaySize = new Point();
getWindowManager().getDefaultDisplay().getSize(displaySize);
if (isFragmentOut)
{
isFragmentOut = false;
Animation slideOutAnimation = AnimationUtils.loadAnimation(this, R.anim.slide_right_out_80);
AnimationListener listener = new Animation.AnimationListener()
{
public void onAnimationStart(Animation animation)
{
}
public void onAnimationRepeat(Animation animation)
{
}
public void onAnimationEnd(Animation animation)
{
int pushback = (int) (displaySize.x * .8f);
rlFragHost.clearAnimation();
RelativeLayout.LayoutParams FragContainerParams;
FragContainerParams = (android.widget.RelativeLayout.LayoutParams) rlFragHost.getLayoutParams();
FragContainerParams.setMargins(pushback, 0, pushback * -1, 0);
rlFragHost.setLayoutParams(FragContainerParams);
}
};
slideOutAnimation.setAnimationListener(listener);
rlFragHost.startAnimation(slideOutAnimation);
}
else
{
isFragmentOut = true;
Animation slideInAnimation = AnimationUtils.loadAnimation(this, R.anim.slide_left_in_80);
AnimationListener listener = new Animation.AnimationListener()
{
public void onAnimationStart(Animation animation)
{
}
public void onAnimationRepeat(Animation animation)
{
}
public void onAnimationEnd(Animation animation)
{
rlFragHost.clearAnimation();
RelativeLayout.LayoutParams FragContainerParams;
FragContainerParams = (android.widget.RelativeLayout.LayoutParams) rlFragHost.getLayoutParams();
FragContainerParams.setMargins(0, 0, 0, 0);
rlFragHost.setLayoutParams(FragContainerParams);
}
};
slideInAnimation.setAnimationListener(listener);
rlFragHost.startAnimation(slideInAnimation);
}
}
I know this isn't exactly what you need, but it should get you started. this is how I do sliding menus.
I think a lot of it is personal preference. My particular favorite is the linear layout. You mentioned that you want to present the items vertically, well, just set android:orientation="vertical", put your items in the xml file in order, and there you go. I've never used fragments personally, so I can't speak to their usefulness, but the linear layout has yet to let me down.
I have a LinearLayout, I'm applying a translation animation to it. I'm filling the animation before and after. Visually it works fine. The animation ends by translating the view off screen. But if I click an x,y coordinate on screen that happens to be where the view was at some point during its animation, a button on the view has its click listener fire.
The only solution I've found is to add an animation listener, and when the animation ends, mark the buttons on the (now out of view) layout to visibility=gone, enabled=false. This seems bizarre - the view is no longer on screen, but it's still responding to click events. Is this a known thing, I'm probably not setting the animation up correctly?
Thanks
----- Update --------
I refactored my animation a little. Instead of using animation.setFillAfter(true), I set the layout's visibility to GONE when the animation is complete. Now it doesn't register clicks when off-screen. Still interested to know if this is a known thing, as it'd be easier to simply not have to add an animation listener etc.
Translate Animations on lower level API( below honey comb) changes where the button is drawn, but not where the button physically exists within the container. So, you are on your own to handle this situation. For more information about this you can refer to this link. One way is to actually change the location of the button in the layout(not by animation). Here is how you can achieve this:
params = (LayoutParams) mBtn.getLayoutParams();
TranslateAnimation animation = new TranslateAnimation(0, 0, 0, 400);
animation.setDuration(2000);
animation.setAnimationListener(mAnimationListener);
mBtn.startAnimation(animation);
....
....
private AnimationListener mAnimationListener = new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
params.topMargin = params.topMargin + 400;
mButton.setLayoutParams(params);
}
};
Here by changing the layout params we are changing the physical position of the button.
In your case as view is going off the screen so you just need to change the visibility of the button(View.GONE) on animation end.
I have a LinearLayout (LayoutContentView) which can contain one or two view (SubView1 and SubView2) (they are eitherTextView or ImageView).
This layout is in another LinearLayout (MyScreenLayout).
I want to make an animation on LayoutContentView so it can move and show just a part of it in MyScreenLayout.
Both of these layouts have setClipChildren(false); so it can let it's children draw outside it-self.
Depending on different parameters, I can change the size of the content, and the size of the content I will show.
Basically, I expend from top to bottom to show the two subviews and unexpend for bottom to top to show only the second subview. Before I expend, I increase the size of the LayoutContentView, so it can show the two subviews, and after I unexpend, I decrease the size of the LayoutContentView, so it can only show the second subview, and it let space on the screen for other elements.
Here is my method for expending and un-expending LayoutContentView :
mLayoutContentView.clearAnimation();
float yFrom = 0.0F;
float yTo = 0.0F;
float xFrom = 0.0F;
float xTo = 0.0F;
if (expend) { // if we expend
// I change the height of my LayoutContentView so it we can show it's two subviews
final android.view.ViewGroup.LayoutParams lp = mLayoutContentView.getLayoutParams();
lp.height = subView1H + subView2H;
setLayoutParams(lp);
invalidate();
// we start the animation so it shows only the second subview
yFrom = -subView1H;
// and we animate from top to bottom until it shows the two subviews
yTo = 0;
} else { // if we un-expend
// we animate from bottom to top starting by showing the two subviews
yFrom = 0;
// and progressively hiding the first subview and showing only the second subview
yTo = -subView1H;
}
Animation anim = new TranslateAnimation(xFrom, xTo, yFrom, yTo);
anim.setDuration(1000);
anim.setFillAfter(true);
anim.setFillEnabled(true);
anim.setAnimationListener(new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
if (!expend) {
// if we un expend at the end of the animation we can set the size of LayoutContentView to the size of the second subview again
final android.view.ViewGroup.LayoutParams lp = mLayoutContentView.getLayoutParams();
lp.height = subView2H;
mLayoutContentView.setLayoutParams(lp);
invalidate();
}
}
});
mLayoutContentView.startAnimation(anim);
The way I made my animation I need it to apply on LayoutContentView, the layout which contain two subview, and with startAnimation() it doesn't do the animation.
I tried to use a LayoutAnimationController, but instead of doing the animation on the LayoutContentView, it does it on each of its children...
I also tried to do the animation on each children myself, but I don't know why, the second subview isn't shown.
Each time I've tried to use HierarchyViewer, but it's does see the change made by the animation.
Does anyone know a solution or have faced the same problem and found a good solution ?
EDIT :
Well it seems that if you set a background color to your TextView and move them with animation, the background move but even if you have set the fill after parameter to your animation, the background moves back to it's original position or something like that, and therefore as I set a background color to both of my SubViews, somewhat one of the SubView's background hide the background of the other...
And there also a problem if after the animation, one of the SubView is still outside the its layout, there is also a problem during the animation, so I add a limitation to what I intended to here too.